Data is returned in 8-bit characters as specified in the code page of the
Windows locale that is set on the system. Any multi-byte characters or characters
that do not map into this code page are substituted with a single byte question
mark (?) character. This is the default encoding. For usage information,
see » How to: Specify PHP Types.

Describes the decimal SQL Server data type. This constant works like a function
and accepts two parameters indicating (in order) precision and scale. For usage information,
see » How to: Specify SQL Types.

Describes the numeric SQL Server data type. This constant works like a function
and accepts two parameter indicating (in order) precision and scale. For usage
information, see » How to: Specify SQL Types.